| 一串红对水分胁迫的生理响应 |
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| 引用本文： | 杨建玉,刘克锋,王红利,陈洪伟,刘冉,洪培培.一串红对水分胁迫的生理响应[J].北方园艺,2010(9):86-89. |
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| 作者姓名： | 杨建玉 刘克锋 王红利 陈洪伟 刘冉 洪培培 |
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| 作者单位： | 北京农学院园林系,北京,102206;北京农学院园林系,北京,102206;北京农学院园林系,北京,102206;北京农学院园林系,北京,102206;北京农学院园林系,北京,102206;北京农学院园林系,北京,102206 |
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| 基金项目： | 北京市教育委员会资助项目 |
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| 摘 要： | 以5个一串红品种(系)为试材,在水分胁迫,即干旱胁迫和水涝胁迫2种处理下的生理反应,测定一串红叶片相对含水量、电导率、丙二醛(MDA)含量、游离脯氨酸(Pro)和可溶性蛋白含量的变化。结果表明:在干旱胁迫处理下,胁迫8 d后,一串红叶片伤害度、MDA含量和游离脯氨酸(Pro)含量明显增加;可溶性蛋白含量呈平稳下降;叶片相对含水量在第11天后明显下降。在水涝胁迫处理下,一串红叶片相对含水量没有明显变化;水涝胁迫4 d后,叶片伤害度呈明显增加趋势;MDA含量和游离脯氨酸(Pro)含量总体呈上升趋势;可溶性蛋白含量持续下降。一串红水分胁迫耐受临界点在干旱胁迫下8 d左右、水涝胁迫下4 d左右,在栽培过程中应注意掌握水分供给时间及防止持续水涝影响一串红正常生长。
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| 关 键 词： | 水分胁迫 一串红 丙二醛 游离脯氨酸 可溶性蛋白 电导率 相对含水量 |
The Physiological Responses of Salvia splendens to Water Stress |
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| YANG Jian-yu,LIU Ke-feng,WANG Hong-li,CHEN Hong-wei,LIU Ran,HONG Pei-pei.The Physiological Responses of Salvia splendens to Water Stress[J].Northern Horticulture,2010(9):86-89. |
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| Authors: | YANG Jian-yu LIU Ke-feng WANG Hong-li CHEN Hong-wei LIU Ran HONG Pei-pei |
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| Institution: | YANG Jian-yu,LIU Ke-feng,WANG Hong-li,CHEN Hong-wei,LIU Ran,HONG Pei-pei(Landscape Department of Beijing University of Agriculture,Beijing 102206) |
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| Abstract: | There were 5 varieties of Salvia splendens to be studied under water stress such as drought stress and water logging stress.Physiological indexes,such as the change of relative water contains of leaves,electrical conductivity,MDA content,praline content and soluble protein content were measured.The results showed that Under drought stress,after 8 days leave damage degree,MDA content,praline content increased;soluble protein content decreased smoothly.Relative water contains of leaves decreased obviously aft... |
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| Keywords: | water stress Salvia splendens MDA praline soluble protein conductivity relative water content |
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